The My Passport Essential USB 3.0 1 TB Portable External HD WDBACX0010BBK-NESN is a black external hard drive from Western Digital, with a rotation speed of 5400 RPM. It is compatible with laptops, PCs, and Macs, and offers 1TB of storage capacity. This USB-powered drive features a 2.5-inch form factor, a USB port for easy connectivity, and an indication light for status monitoring. With a sleek design and reliable performance, it is an ideal choice for expanding storage capacity on the go.